211112021210212 has 48 divisors (see below), whose sum is σ = 395808828146928. Its totient is φ = 98173889003520.

The previous prime is 211112021210177. The next prime is 211112021210303. The reversal of 211112021210212 is 212012120211112.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 4150249030656 + 206961772179556 = 2037216^2 + 14386166^2 .

It is a super-2 number, since 2×211112021210212² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211112021210212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19850383 + ... + 28570294.

It is an arithmetic number, because the mean of its divisors is an integer number (8246017253061).

Almost surely, 2^{211112021210212} is an apocalyptic number.

It is an amenable number.

211112021210212 is a deficient number, since it is larger than the sum of its proper divisors (184696806936716).

211112021210212 is a wasteful number, since it uses less digits than its factorization.

211112021210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48421456 (or 48421454 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 211112021210212 its reverse (212012120211112), we get a palindrome (423124141421324).

The spelling of 211112021210212 in words is "two hundred eleven trillion, one hundred twelve billion, twenty-one million, two hundred ten thousand, two hundred twelve".